In Syria, 15 people were killed and several injured in twin suicide attacks in northern province of Aleppo today. Syrian Observatory for Human Rights monitoring group said that one attacker detonated a car bomb near the Islamic State held town of Deir Hafer and killed eight fighters of regime forces. <br/><br/>In a second attack, a fighter detonated his suicide belt and killed seven fighters injuring several others in the rebel-held town of Azaz. Islamic State has claimed responsibility for both the attacks. <br/><br/>Meanwhile, Russian and regime warplanes bombarded Islamic State positions in support of Syrian troops. Syria's conflict broke out in March 2011 and killed more than 310,000 people.